Migrants hired for agriculture work will get four-year working visas but must remain in a specified region and work in some type of farming.

The agricultural sector, including the National Farmers’ Federation, has been calling for a specific visa for farm workers, but Assistant Agriculture Minister Richard Colbeck last week said it wasn’t needed given changes already in train.

Prime Minister Scott Morrison last year committed to an agriculture visa in the medium to long term after a failed push from the Nationals to get the proposal in place before harvest time.

Under other new visa requirements starting on Monday, overseas-trained doctors wanting to work as general practitioners will be directed away from metropolitan areas to regional, rural and remote communities.